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Radiation Protection Dosimetry Advance Access published online on August 12, 2006
Radiation Protection Dosimetry, doi:10.1093/rpd/ncl090
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© The Author 2006. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org
Received March 9, 2006
Revised June 2, 2006
Accepted June 4, 2006

SCIENTIFIC AND TECHNICAL PAPER

DOSE-AREA PRODUCT MEASUREMENTS IN PANORAMIC DENTAL RADIOLOGY

B. Poppe 1 *, H. K. Looe 1, A. Pfaffenberger 1, N. Chofor 1, F. Eenboom 1, M. Sering 2, A. Rühmann 3, A. Poplawski 3, and K. Willborn 3

1 Medical Radiation Physics Working Group, Carl von Ossietzky University Oldenburg, 26111 Oldenburg, Germany; Clinic of Radiotherapy and Oncology, Pius-Hospital, Georgstrasse 12, 26121 Oldenburg, Germany
2 Öko-Institut e.V., Darmstadt Office, Nuclear Engineering and Plant Safety Division, Rheinstrasse 95, 64295 Darmstadt, Germany
3 Clinic of Radiotherapy and Oncology, Pius-Hospital, Georgstrasse 12, 26121 Oldenburg, Germany

* To whom correspondence should be addressed.
B. Poppe, E-mail: bjoern.poppe{at}uni-oldenburg.de


  Abstract

In this study, dose-area product (DAP) measurements in panoramic dental radiology have been performed in Germany. The results obtained in this study were proposed as diagnostic reference levels (DRLs). A representative number of dental panoramic units, both with digital and conventional image receptors, have been chosen. Common statistical parameters such as mean, standard deviation and 3rd quartile have been calculated. For four different standard programmes, ‘large adult’, ‘adult male’, ‘adult female’ and ‘child’, the proposed DRLs are 101, 87, 84 and 75 mGy cm2, respectively. No clear tendency to a generalised dose reduction from the transition to digital techniques has been observed. Effective doses have been calculated from E/DAP conversion factors published in literature. Even though these values differ by a factor of ~3, upper limits of 15.8-21.2 µSv for the four different exposure settings were derived from the data.


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